Evener-coupling.



G. F. THOMPSON.

EVENER COUPLING. APPLICATION FILED MAY 23, 1908.

948,487. Patented Feb. 8, 1910.

G O O l I I l O 4 7 l 2 /4E4H /4 GEORGE F. THOMPSON, OF- MINNEAPOLIS,MINNESOTA.

EVENER-COUPLING.

To all whom it may concern:

Be it known that I, GEORGE F. THOMPSON, of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Improvements inEvener-Couplings, of which the following is a specification.

The object of my invention is to provide a coupling which will do awaywith the necessity of a hole through the center of the evener.

A further object is to provide an evener which will dispense with thestay straps usually required.

A further object is to provide an evener having means for holding it ina horizontal position on the pole and preventing it from tiltingsidewise thereon.

A further object is to provide a support for the evener which will causeit to oscillate smoothly and evenly and prevent all danger or tendencyof twisting.

My invention consists generally in various constructions andcombinations, all as hereinafter described and particularly pointed outin the claims.

In the accompanying drawings forming part of this specification, Figure1 is a plan view of a portion of a pole and evener with my inventionapplied thereto. Fig. 2 is a detail view showing the application of theevener to the pole. Fig. 3 is a sectional view illustrating the mannerof mounting the evener on the pole. Fig. 4: is a sectional view on theline mw of Fig. 3 looking in the direction of the arrow. Fig. 5 is a.view of the under side of the pole and evener.

In the drawing, 2 represents a pole made in one piece or with the heeland straight portion made separately as described in my companionapplication herewith.

3 is the evener and 4 a coupling plate having a hollow tapered stud 5depending therefrom and fitting within a hub 6 on the cap plate 7 atapered socket 8 being provided in the pole to receive said hub. The capplate has flanges depending on each side of the pole. A bolt 9 passesdown through the stud and the pole and secures the coupling platethereon but allows it to oscillate with the evener. The coupling platerests on the top plate and has end portions projecting laterally on eachside and secured to the evener. The bolt fitting within the hollow studhas its head in engagement with the evener coupling plate and a nut onits lower end in engagement with the bottom Specification of LettersPatent.

Application filed May 23, 1908.

Patented Feb. 8, 1910. Serial No. 434,603.

plate of the pole. The ends of the are provided with clamps 10 whichrigidly secure the plate and the evener together. The evener is thusmounted on the pole without the necessity of forming a hole in theevener to weaken it, and the arrangement of the clamps on each side ofthe evener center makes the evener stronger than one made in the usualway, as the leverage from the ends of the evener to the clamps is lessthan it would be to the center of the evener. I can thus safely make theevener of lighter stock if desired.

By the use of the stud and hub connecting the evener with the pole I amable to avoid all Wear on the bolt 9 and prevent the evener from workingloose and tilting sidewise on its pivot, a frequent occurrence ineveners as usually made. The coupling plate has a rearwardly projectingfiat flange 11 terminating in an upwardly projecting edge 12, and aplate 13 is secured to the pole by a bolt 14 and has a hook portion 15overhanging the flange 12 and forming a guide therefor, the flange andthe hook being curved to allow the oscillation of the evener on itspivot.

This construction insures a broad bearing surface for the evenercoupling on the pole and prevents any twisting tendency of the evener,it being necessary to remove two bolts before the evener and couplingplate can be removed.

The rearwardly extending portion of the coupling plate and the hammerstrap bearing thereon and the projection of said coupling plate in frontof the socket permit free horizontal oscillation of the evener, butprevent a rolling forward movement.

I provide also on the bottom of the coupling plate on each side of thepole, lugs 16 which allow a limited oscillation of the evener but engagethe pole irons and prevent the evener from swinging beyond apredetermined point. I am thus able to do away entirely with stay strapsusually required with buggy pole eveners.

I claim as my invention:

1. The combination, with a pole having a tapered socket extendingtherethrough, of top and bottom plates for said pole, said top platehaving flanges depending on each side of said pole, and a hub fittingwithln said socket, an evener, a coupling plate adapted to rest on thetop plate of said pole and having end portions projecting laterally oneach plate 41' z tially as described.

2. The combination, with a pole having a socket therein, of top andbottom plates for said pole, said top plate having a hub fitting withinsaid socket, an evener, a coupling plate resting on the top plate ofsaid pole and having end portions projecting laterally on each sidethereof, and means for securing said end portions to said evener, saidcoupling plate having a flat flange projecting rearwardly therefrom, andsaid flange having a broad bearing surface on said top plate andprovided with a curved upwardlyturned rear edge, a hammer strap securedto said pole and provided with a hook at its forward end which overhangsthe upwardly turned edge of said flange, and means for clamping saidhammer strap on said pole in the rear of and close to the point whereits hook engages the upwardly-turned edge of said flange, and saidcoupling plate pr0-' jecting in front of the socket in said pole andbearing on said top plate and whereby horizontal oscillation of theevener will be permitted but a forward rolling movement is prevented.

3. The combination, with a buggy pole having a socket therein, of topand bottom plates secured to said pole, said top plate having dependingflanges on each side thereof secured to said pole, and a hub fittingwithin the socket in said pole, an evener, a coupling plate having astud fitting within said hub, and means for securing said stud therein,said coupling plate having end portions projecting laterally on eachside of said pole, and means for securing said end portions to saidevener, and said end portions having depending lugs cast integrallytherewith on each side of said pole and adapted when the evener isoscillated to engage the depending fianges of said top plate and limitthe oscillation of the evener thereon, substantially as described.

In witness whereof, I have hereunto set my hand this 16th day of May1908.

GEORGE F. THOMPSON.

Witnesses:

J. H. BALDWIN, J. A. BYINGTON.

